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Specifications

OrienTek T20 Portable Testpro Optical Power Meter
1. 850/1300/1310/1490/1550/1625nm
2. With FC/SC/ST Connector
3. Six wavelength
4. Rechargeable Li-battery instead of dry battery
T20 Portable optical power meter is an accurate and durable handheld meter designed for the installation, operation and maintenance of optical fibre network. It is a compact device with backlight switch and auto power on-off ability. Besides, it provides ultra-wide measurement range, high accuracy, user self-calibration function and universal port. In addition, it displays linear indicators (mW) and non-linear indicators (dBm) in one screen at the same time.
Features:
1. Self calibration by user himself
2. Rechargeable lithium battery supports continuous work for up to 48 hours.
3. Linear indicators (mW) and non-linear indicators (dBm) display in one screen
4. Unique FC/SC/ST universal port (see Figures 1, 2), no complex conversion
5. Optional auto power-off ability
6. Backlight ON/OFF
Specifications:
 
Model
T20A
T20B
Measurement range
-70~+3
-50~+26
Type of probe
InGaAs
Range of wave length
800~1700
Uncertainty
±5%
Standard wave length (nm)
8509801300131014901550
Resolution
Linear indication: 0.1%  Logarithmic indication: 0.01dBm
Working temperature
-10~+60
Storage temperature
-25~+70
Auto power-off time (min)
10
Continuous working hours
At least 48 hours
Dimensions (mm)
190×100×48
Power supply
AA Rechargeable Battery
Weight(g)
400

Function descriptions: 
1    LCD
   It displays the optical power measurement results in forms of dB, dBm, mW, uW, nW; the set wave length is 850nm , 980 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, etc.
2    ON/OFF

   To power on the meter, press and hold ON/OFF till information appears in LCD; while in power-on state, press the key to power off the meter.

3    dB
   Measure relative optical power under preset wave length.
4    ZERO
   Press this key to zero the optical power meter.
5    λ
   Press λ key to select wave length, there are six wave length, i.e.: 850nm , 980 nm, 1300 nm, 1310 nm,
1490 nm, 1550 nm for your choice, their values will appear in LCD respectively.
6    LIGHT
   Press this key to turn on/off the back light of LCD.
7AUTOOFF
Press this key to enable or disable AUTOOFF function of the meter. 
Operating Instructions
 
Power ON/OFF 
1.     Press and hold ON/OFF on the panel till information appears in LCD.
2.     Press ON/OFF on the panel, information disappears from LCD, the meter is powered off.